81 lines
4.9 KiB
C++
81 lines
4.9 KiB
C++
/* OGLExtensions.cpp
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Copyright (C) 2009 Richard Goedeken
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* This source file contains code for assigning function pointers to some OpenGL functions */
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/* This is only necessary because Windows does not contain development support for OpenGL versions beyond 1.1 */
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#include <SDL_opengl.h>
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#include "OGLExtensions.h"
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#include "Video.h"
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static void APIENTRY EmptyFunc(void) { return; }
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bool bNvidiaExtensionsSupported = false;
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PFUNCGLCOMBINERPARAMETERFVNVPROC pglCombinerParameterfvNV = (PFUNCGLCOMBINERPARAMETERFVNVPROC) EmptyFunc;
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PFUNCGLFINALCOMBINERINPUTNVPROC pglFinalCombinerInputNV = (PFUNCGLFINALCOMBINERINPUTNVPROC) EmptyFunc;
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PFUNCGLCOMBINEROUTPUTNVPROC pglCombinerOutputNV = (PFUNCGLCOMBINEROUTPUTNVPROC) EmptyFunc;
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PFUNCGLCOMBINERINPUTNVPROC pglCombinerInputNV = (PFUNCGLCOMBINERINPUTNVPROC) EmptyFunc;
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PFUNCGLCOMBINERPARAMETERINVPROC pglCombinerParameteriNV = (PFUNCGLCOMBINERPARAMETERINVPROC) EmptyFunc;
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PFUNCGLACTIVETEXTUREPROC pglActiveTexture = (PFUNCGLACTIVETEXTUREPROC) EmptyFunc;
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PFUNCGLACTIVETEXTUREARBPROC pglActiveTextureARB = (PFUNCGLACTIVETEXTUREARBPROC) EmptyFunc;
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PFUNCGLMULTITEXCOORD2FPROC pglMultiTexCoord2f = (PFUNCGLMULTITEXCOORD2FPROC) EmptyFunc;
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PFUNCGLMULTITEXCOORD2FVPROC pglMultiTexCoord2fv = (PFUNCGLMULTITEXCOORD2FVPROC) EmptyFunc;
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PFUNCGLDELETEPROGRAMSARBPROC pglDeleteProgramsARB = (PFUNCGLDELETEPROGRAMSARBPROC) EmptyFunc;
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PFUNCGLPROGRAMSTRINGARBPROC pglProgramStringARB = (PFUNCGLPROGRAMSTRINGARBPROC) EmptyFunc;
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PFUNCGLBINDPROGRAMARBPROC pglBindProgramARB = (PFUNCGLBINDPROGRAMARBPROC) EmptyFunc;
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PFUNCGLGENPROGRAMSARBPROC pglGenProgramsARB = (PFUNCGLGENPROGRAMSARBPROC) EmptyFunc;
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PFUNCGLPROGRAMENVPARAMETER4FVARBPROC pglProgramEnvParameter4fvARB = (PFUNCGLPROGRAMENVPARAMETER4FVARBPROC) EmptyFunc;
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PFUNCGLFOGCOORDPOINTEREXTPROC pglFogCoordPointerEXT = (PFUNCGLFOGCOORDPOINTEREXTPROC) EmptyFunc;
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PFUNCGLCLIENTACTIVETEXTUREARBPROC pglClientActiveTextureARB = (PFUNCGLCLIENTACTIVETEXTUREARBPROC) EmptyFunc;
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#define INIT_ENTRY_POINT(type, funcname) \
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p##funcname = (type) CoreVideo_GL_GetProcAddress(#funcname); \
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if (p##funcname == NULL) { DebugMessage(M64MSG_WARNING, \
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"Couldn't get address of OpenGL function: '%s'", #funcname); p##funcname = (type) EmptyFunc; }
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void OGLExtensions_Init(void)
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{
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/* nvidia extensions are a special case */
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bNvidiaExtensionsSupported = true;
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pglCombinerParameterfvNV = (PFUNCGLCOMBINERPARAMETERFVNVPROC) CoreVideo_GL_GetProcAddress("glCombinerParameterfvNV");
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if (pglCombinerParameterfvNV == NULL) bNvidiaExtensionsSupported = false;
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pglFinalCombinerInputNV = (PFUNCGLFINALCOMBINERINPUTNVPROC) CoreVideo_GL_GetProcAddress("glFinalCombinerInputNV");
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if (pglFinalCombinerInputNV == NULL) bNvidiaExtensionsSupported = false;
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pglCombinerOutputNV = (PFUNCGLCOMBINEROUTPUTNVPROC) CoreVideo_GL_GetProcAddress("glCombinerOutputNV");
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if (pglCombinerOutputNV == NULL) bNvidiaExtensionsSupported = false;
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pglCombinerInputNV = (PFUNCGLCOMBINERINPUTNVPROC) CoreVideo_GL_GetProcAddress("glCombinerInputNV");
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if (pglCombinerInputNV == NULL) bNvidiaExtensionsSupported = false;
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pglCombinerParameteriNV = (PFUNCGLCOMBINERPARAMETERINVPROC) CoreVideo_GL_GetProcAddress("glCombinerParameteriNV");
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if (pglCombinerParameteriNV == NULL) bNvidiaExtensionsSupported = false;
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INIT_ENTRY_POINT(PFUNCGLACTIVETEXTUREPROC, glActiveTexture);
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INIT_ENTRY_POINT(PFUNCGLACTIVETEXTUREARBPROC, glActiveTextureARB);
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INIT_ENTRY_POINT(PFUNCGLMULTITEXCOORD2FPROC, glMultiTexCoord2f);
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INIT_ENTRY_POINT(PFUNCGLMULTITEXCOORD2FVPROC, glMultiTexCoord2fv);
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INIT_ENTRY_POINT(PFUNCGLDELETEPROGRAMSARBPROC, glDeleteProgramsARB);
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INIT_ENTRY_POINT(PFUNCGLPROGRAMSTRINGARBPROC, glProgramStringARB);
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INIT_ENTRY_POINT(PFUNCGLBINDPROGRAMARBPROC, glBindProgramARB);
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INIT_ENTRY_POINT(PFUNCGLGENPROGRAMSARBPROC, glGenProgramsARB);
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INIT_ENTRY_POINT(PFUNCGLPROGRAMENVPARAMETER4FVARBPROC, glProgramEnvParameter4fvARB);
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INIT_ENTRY_POINT(PFUNCGLFOGCOORDPOINTEREXTPROC, glFogCoordPointerEXT);
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INIT_ENTRY_POINT(PFUNCGLCLIENTACTIVETEXTUREARBPROC, glClientActiveTextureARB);
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}
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